Sputum suction mirror

Abstract

The utility model discloses a kind of sputum suction mirrors, it is related to medical instrument field, sputum suction mirror includes insertion tube assembly, insertion tube assembly includes insertion tube and pulse assembly, insertion tube has suction passage, pulse assembly includes shielding piece and driving part, shielding piece is set to insertion tube, it is configured to be used to shield suction passage, to adjust the flow area of suction passage, driving part is used to drive shielding piece, to change the flow area of suction passage. Medical staff can operate driving part, drive shielding piece, to adjust the flow area of the suction passage. In the same case of flow in suction passage, when the area of suction passage is increased by shielding piece, this will increase the flow area of suction passage, slow down the flow rate in suction passage, to pass through larger volume sputum or sputum plug etc.;When the area of suction passage is reduced by shielding piece, this will reduce the flow area of suction passage, improve the flow rate in suction passage, improve the discharge efficiency of sputum and sputum plug etc.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a suction endoscope. Background Technology

[0002] A suction endoscope is a widely used medical device in clinical practice, primarily used to remove sputum from a patient's airway. Typically, the endoscope is connected to a suction device via a long, thin tubular structure to aspirate sputum from the airway, thus helping to maintain airway patency. It is commonly used in the treatment of acute respiratory infections, chronic obstructive pulmonary disease, and postoperative patients.

[0003] During the use of a suction endoscope, especially when the sputum is thick, the efficiency of sputum removal is low, and the suction efficiency of the endoscope decreases, making it difficult to successfully clear the sputum. This leads to an increase in the operation time and a significant increase in patient discomfort. Utility Model Content

[0004] In view of the shortcomings of the above-mentioned related technologies, this application provides a suction endoscope to solve the above-mentioned technical problems.

[0005] This application provides a suction endoscope, which includes an insertion tube assembly, an insertion tube assembly and a pulse assembly. The insertion tube has a suction channel, and the pulse assembly includes a blocking member and a driving member. The blocking member is disposed on the insertion tube and configured to block the suction channel to adjust the flow area of ​​the suction channel. The driving member is used to drive the blocking member to change the flow area of ​​the suction channel.

[0006] The technical solution adopted by this utility model can achieve the following beneficial effects: In the insertion tube assembly of the suction endoscope, the pulse component is set in the insertion tube of the suction endoscope. Medical personnel can operate the drive component, thereby driving the blocking component to adjust the flow area of ​​the suction channel. Furthermore, it can increase and decrease the flow area of ​​the suction channel. Under the condition of the same flow rate in the suction channel, when the area of ​​the suction channel is increased by the blocking component, this increases the flow area of ​​the suction channel and slows down the flow velocity in the suction channel, so as to pass through larger sputum or sputum plugs, and avoid the suction channel being blocked by sputum plugs; when the area of ​​the suction channel is reduced by the blocking component, this reduces the flow area of ​​the suction channel, increases the flow velocity in the suction channel, enhances the suction power of the suction endoscope, and improves the discharge efficiency of sputum and sputum plugs.

[0007] During this period, medical staff can repeatedly control the working state of the drive component and the shielding component, which can be switched rapidly. This means continuously controlling the increase and decrease of the flow area of ​​the suction channel to create rapidly changing pressure fluctuations inside the suction channel, thereby generating pressure impacts that help loosen and clear sputum plugs and improve suction efficiency. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 This is a schematic diagram of the structure of the insertion tube and pulse assembly shown in an exemplary embodiment of this application; Figure 2 This is a cross-sectional schematic diagram illustrating the insertion tube and pulse assembly in an exemplary embodiment of this application; Figure 3 yes Figure 2 Enlarged view of point a in the image; Figure 4 This is a cross-sectional schematic diagram illustrating the insertion tube and pulse assembly in another state, as shown in an exemplary embodiment of this application; Figure 5 yes Figure 4 Enlarged view of point b in the image; Figure 6 This is a cross-sectional schematic diagram of a pulse component illustrated in an exemplary embodiment of this application; Figure 7 yes Figure 6 Enlarged view of point c in the image; Figure 8 This is a schematic diagram of the structure of a suction endoscope shown in an exemplary embodiment of this application; Figure 9 This is a cross-sectional schematic diagram of a suction endoscope shown in an exemplary embodiment of this application.

[0010] In the figure: 1. Suction endoscope; 100. Pulse assembly; 110. Shielding component; 111. Pulse chamber; 120. Drive component; 121. Receptacle; 122. Flow channel; 123. Cleaning chamber; 124. Sealing structure; 125. Outlet; 126. Puncture structure; 200. Insertion tube; 210. Suction channel; 220. Through hole; 230. Mounting part; 240. Insertion part; 300. Insertion tube assembly; 400. Handle; 410. Electrical connection part. Detailed Implementation

[0011] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0012] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0013] In the various embodiments of this application, "near end" and "far end" refer to the distance of each component from the user in the usage environment. The end closer to the user is designated as the "near end", and the end farther from the user is designated as the "far end".

[0014] This application provides a pulse component 100; please refer to [link / reference]. Figure 1 as well as Figure 2 The pulse assembly 100 is used in the suction endoscope 1. The suction endoscope 1 may include an insertion tube 200, which has a suction channel 210. The suction endoscope 1 helps maintain airway patency by suctioning sputum from the airway. The suction endoscope 1 is connected to an external negative pressure source through the insertion tube 200, and the sputum is suctioned out from the airway through the suction channel 210. It is commonly used in the treatment of acute respiratory infections, chronic obstructive pulmonary disease, and postoperative patients.

[0015] To ensure the suction endoscope 1 accurately reaches the designated position, a camera module and an illumination module can be installed at its distal end. The illumination module illuminates the area in front of the insertion tube 200, and the camera module acquires image information from the area in front of the insertion tube 200. This image information can then be transmitted back to the display device. Medical personnel can use this image information to determine and control the suction endoscope 1 to reach the designated position.

[0016] In the embodiments of this application, please refer to Figure 2 The pulse assembly 100 may include a shielding member 110 and a driving member 120, with the shielding member 110 and the driving member 120 being connected in a transmission manner.

[0017] Please see Figure 2A blocking member 110 is disposed in the insertion tube 200 and configured to block the suction channel 210 to adjust the flow area of ​​the suction channel 210. For example, the blocking member 110 can block the suction channel 210, thereby adjusting the flow area of ​​the suction channel 210. The blocking member 110 can adjust its position and orientation, and can partially or completely cover the suction channel 210. For instance, when the blocking member 110 deflects, its projected area in the axial direction of the insertion tube 200 increases, and the effective flow area of ​​the suction channel 210 (including sputum plugs) decreases; conversely, when the blocking member 110 deflects in the opposite direction, its projected area in the axial direction of the insertion tube 200 decreases, and the effective area of ​​the suction channel 210 (including sputum plugs) increases.

[0018] Understandably, the blocking member 110 can directly or indirectly change the flow area of ​​the suction channel 210. In one case, the blocking member 110 is located inside the suction channel 210, and changes in its position or orientation directly change the flow area of ​​the suction channel 210. In another case, the blocking member 110 is located outside the suction channel 210, and can drive the insertion tube 200 to change its position or orientation, thus indirectly changing the flow area of ​​the suction channel 210.

[0019] Please continue reading. Figure 2 The drive member 120 is used to drive the blocking member 110 to change the flow area of ​​the suction channel 210. Exemplarily, the drive member 120 is disposed at the proximal end of the insertion tube 200 and can be operated by the fingers of a medical professional. Under the control of the drive member 120, the blocking member 110 can change the flow area of ​​the suction channel 210. Furthermore, the medical professional can increase and decrease the flow area of ​​the suction channel 210. Under the condition of the same flow rate in the suction channel 210, such as... Figure 3 As shown, when the area of ​​the suction channel 210 is not blocked by the shielding member 110, this increases the flow area of ​​the suction channel 210, slows down the flow rate within the suction channel 210, and allows larger volumes of sputum or sputum plugs to pass through, preventing the suction channel 210 from being blocked by sputum plugs; for example Figure 4 and Figure 5 As shown, when the area of ​​the suction channel 210 is reduced by the shielding member 110, this reduces the flow area of ​​the suction channel 210, increases the flow rate within the suction channel 210, enhances the suction of the suction endoscope 1, and improves the discharge efficiency of sputum and sputum plugs.

[0020] Understandably, during this period, medical staff can repeatedly control the working state of the drive component 120 and the shielding component 110 to switch rapidly, that is, to continuously control the flow area of ​​the suction channel 210 to increase and decrease repeatedly, so as to form rapidly changing pressure and flow rate fluctuations inside the suction channel 210, thereby generating pressure impact, which helps to loosen and remove sticky sputum or sputum plugs, and improve the suction efficiency of the insertion tube 200.

[0021] In a more specific implementation, please refer to Figure 3 The shielding member 110 has a pulse cavity 111, and the driving member 120 has a receiving cavity 121 filled with a first medium. The first medium can be pure water, air, or saline solution, etc., and is not limited thereto. The pulse cavity 111 and the receiving cavity 121 are connected, meaning they can be connected via a pipe, and this pipe can be embedded within the wall of the insertion tube 200.

[0022] When the drive member 120 is movable relative to the insertion tube 200, the first medium can flow from the receiving cavity 121 into the pulse cavity 111. For example, as... Figure 3 As shown, the pulse cavity 111 is in an empty state, and medical personnel can press the drive component 120, which moves relative to the insertion tube 200. Since the accommodating cavity 121 and the pulse cavity 111 are connected, under the action of a pressure difference, this allows the first medium in the drive component 120 to flow from the accommodating cavity 121 to the pulse cavity 111. At this time, the first medium can act on the blocking component 110, pushing the blocking component 110 to change the flow area of ​​the suction channel 210. For example, as... Figure 4 and Figure 5 As shown, as more of the first medium flows into the pulse cavity 111, the pressure in the pulse cavity 111 gradually increases. As the pressure continues to increase, the blocking member 110 moves closer to the suction channel 210, reducing the flow area of ​​the suction channel 210. This design allows for rapid adjustment of the area of ​​the suction channel 210 via pneumatic or hydraulic means, achieving a quick and precise change in the flow area.

[0023] In some other cases, the shielding member 110 can be a sheet-like structure, located within the suction channel 210, and rotatable relative to the insertion tube 200. This rotation can occur when the shielding member 110 rotates radially around the insertion tube 200. The shielding member 110 has a connecting end that extends outside the suction channel 210, and a drive member 120 is connected to this connecting end. When a medical professional presses the drive member 120, the drive member 120 drives the shielding member 110 to rotate relative to the insertion tube 200, thus changing the posture of the sheet-like shielding member 110 within the suction channel 210. As the position and posture change, the axial area of ​​the shielding member 110 within the insertion tube 200 continuously increases or decreases, thereby altering the flow area of ​​the suction channel 210, which will not be elaborated further here.

[0024] Alternatively, the obstruction member 110 can be connected to a rod-shaped structure, with its end connected to the insertion tube 200. The movement path of the obstruction member 110 intersects or is perpendicular to the axis of the insertion tube 200. Both ends of the insertion tube 200 are fixed relative to the handle 400 of the suction endoscope 1. Driven by the obstruction member 110, the insertion tube 200 deforms and bends. The bending amplitude of the insertion tube 200 is affected by the movable length of the obstruction member 110, meaning the bending amplitude of the insertion tube 200 is adjustable. Under relatively stable flow conditions, this allows the obstruction member 110 to increase the bending amplitude of the insertion tube 200. The increased bending amplitude reduces the flow area of ​​the suction channel 210 of the insertion tube 200, increases resistance, and allows for increased flow rate, making it suitable for faster or more severe suction scenarios. The shield 110 can reduce the bending amplitude of the insertion tube 200. With the reduced bending amplitude, the flow area of ​​the suction channel 210 of the insertion tube 200 increases, the resistance decreases or becomes almost zero, and the flow rate can be reduced, making it suitable for a gentler suction scenario.

[0025] Please refer to the embodiments in this application. Figure 3The shielding member 110 is disposed in the mounting portion 230 of the insertion tube 200. The mounting portion 230 can be a section or wall of the insertion tube 200, and is located inside the handle 400 of the suction endoscope 1. The handle 400 is used by medical personnel to hold and operate the suction endoscope 1. Medical personnel can change the suction state of the suction channel 210 and drive the insertion tube 200 to be inserted in a specified insertion direction via the handle 400. For example, the mounting portion 230 of the insertion tube 200 is disposed inside the handle 400, and the inner wall of the handle 400 can abut against the mounting portion 230, providing stable and continuous support for the mounting portion 230 of the insertion tube 200. The shielding member 110 acts on the mounting portion 230. Because the shielding member 110 provides a shielding effect, internal force will accumulate at the position where the insertion tube 200 and the shielding member 110 are connected. While ensuring the adjustment of the flow area, this can prevent the mounting part 230 of the insertion tube 200 from undergoing severe deformation or obvious bulging, thereby improving the protection capability and safety of the insertion tube 200.

[0026] In addition, in some other cases, please refer to Figure 2 The shield 110 is located at the insertion portion 240 of the insertion tube 200. The insertion portion 240 can be connected to the mounting portion 230 and is set independently relative to the handle 400. For example, the shield 110 is provided at the distal end of the insertion tube 200, and the shield 110 can adjust the flow area at the distal end of the suction channel 210.

[0027] Please refer to the embodiments in this application. Figure 3 A blocking member 110 is disposed within the suction channel 210. Under the driving action of the driving member 120, the blocking member 110 can block or open at least a portion of the suction channel 210. For example, the blocking member 110 can be an airbag disposed within the suction channel 210, and the first medium of the driving member 120 can be gas. By driving the blocking member 110 through the driving member 120, gas enters the blocking member 110, causing the volume of the blocking member 110 to expand, thereby changing the flow area of ​​the suction channel 210. The blocking member 110 can directly change the flow area of ​​the suction channel 210, improving the response speed of the pulse assembly 100.

[0028] Preferably, the inner wall of the suction channel 210 may also be provided with a diaphragm. The diaphragm has a smooth surface and covers the side of the shield 110 near the central axis of the insertion tube 200, allowing sputum and sputum plugs to flow within the smooth diaphragm. The diaphragm arrangement can improve the permeability of the insertion tube 200, allowing for a smooth transition at the shield 110, making it easier to expel sputum and sputum plugs.

[0029] Understandably, if the sputum is thin and small in quantity, the obstruction device 110 can be left unobstructed or only partially obstruct the suction channel 210, reducing the flow rate within the suction channel 210 and slowing down the suction force to avoid unnecessary damage to the respiratory mucosa. However, when the sputum is thick and accumulates in large quantities, the driving device 120 can drive the obstruction device 110 to cover the suction channel 210 over a large area, quickly clearing the sputum at maximum flow rate and ensuring the patient's airway remains open. The terms "large area" and "small area" refer to the area of ​​the suction channel 210 obstructed by the obstruction device 110. For example, if the area of ​​the suction channel 210 obstructed by the obstruction device 110 accounts for 30% or more of the suction channel 210, it is considered a large area obstruction; if the area of ​​the suction channel 210 obstructed by the obstruction device 110 accounts for less than 30% of the suction channel 210, it is considered a small area obstruction. No further restrictions are imposed on this.

[0030] In another embodiment, the obstruction member 110 is disposed outside the insertion tube 200. Under the driving action of the driving member 120, the obstruction member 110 can squeeze or release the wall of the insertion tube 200. When the obstruction member 110 squeezes the wall of the insertion tube 200, the lumen becomes smaller, reducing the flow area of ​​the suction channel 210. For example, when performing liquid suction on fragile tissues, the driving member 120 can prevent the obstruction member 110 from squeezing or only slightly squeezing the wall of the insertion tube 200, ensuring a smooth and safe suction process. When the sputum is thick and accumulates in large quantities, the obstruction member 110 squeezes the insertion tube 200, increasing the flow rate within the insertion tube 200 to quickly clear the sputum at the maximum flow rate, ensuring the patient's airway remains open. This eliminates the interference of the obstruction member 110 with the suction channel 210, increases the maximum flow area, and ensures that sputum plugs can be smoothly discharged.

[0031] Furthermore, the shielding element 110 is disposed on the outer surface of the insertion tube 200, and the outer surface of the shielding element 110 is adapted to abut against the inner wall of the handle 400. When it is necessary to adjust the flow area of ​​the suction channel 210, the shielding element 110 presses the insertion tube 200 inward. The inner wall of the handle 400 abuts tightly against the outer surface of the shielding element 110, providing a support point for the shielding element 110. In other words, the supporting force provided by the handle 400 to the shielding element 110 can serve as the force for the shielding element 110 to press against the insertion tube 200, preventing the shielding element 110 from shifting or deforming, thus affecting the adjustment effect. This enables precise control of the suction flow rate, meeting the needs of different patients and different suctioning scenarios.

[0032] In another embodiment, the shield 110 can be built into the wall of the insertion tube 200. The shield 110 will not interfere with the suction channel 210, thereby increasing the maximum flow area and improving the response speed. This will not be elaborated further here.

[0033] Preferably, the shielding member 110 is distributed circumferentially along the insertion tube 200. When the shielding member 110 is in operation, it can be adjusted simultaneously along the periphery of the insertion tube 200 towards the central axis, preventing irregular deformation of the suction channel 210 and improving the uniformity of force on the insertion tube 200. For example, the shielding member 110 is disposed within the suction channel 210, and the inner wall of the insertion tube can provide support and connection for the shielding member 110, improving its stability. Alternatively, the shielding member 110 is disposed outside the insertion tube, and it can apply force evenly inward along the periphery of the insertion tube 200, eliminating the risk of damage to the insertion tube 200 due to uneven force. This helps to improve suction efficiency and reduce the risk of sputum residue and blockage caused by irregular deformation of the suction channel 210.

[0034] Please refer to the embodiments in this application. Figure 3 The insertion tube 200 has a through hole 220 communicating with the suction channel 210, and the through hole 220 is located within the drive member 120. The through hole 220 can switch the suction state of the suction channel 210. For example, if the medical staff simply presses the elastic pressing part or covers the through hole 220, the through hole 220 can be closed. Since the suction channel 210 is connected to the through hole 220, after the through hole 220 is closed, the suction function of the suction channel 210 is immediately activated, and suctioning and other operations begin. At this time, the medical staff can simultaneously drive the drive member 120 to change the flow area of ​​the suction channel 210. During operation, the medical staff does not need to move their fingers; they can complete the opening and closing of the suction channel 210 and the adjustment of the flow area by operating only one drive member 120, improving the ease of operation.

[0035] Please continue reading for more details. Figure 3 The through-hole 220 is used to switch the suction state of the suction channel 210, such as suction state and no-load state. Medical staff can close the through-hole 220, and the negative pressure of the suction channel 210 acts on the distal end of the insertion tube 200 to realize the suction operation. When medical staff open the through-hole 220, the through-hole 220 is connected to the outside. Compared with the distal end of the suction channel 210, the through-hole 220 is closer to the proximal end of the suction channel 210, and the negative pressure is provided by the negative pressure device connected to the proximal end of the suction channel 210. Therefore, the negative pressure can act directly on the through-hole 220, and the negative pressure will not act on the distal end of the insertion tube 200, improving the operability of the insertion tube 200.

[0036] Understandably, because the through-hole 220 is located inside the drive component 120, medical personnel can only operate the drive component 120 after sealing the through-hole 220. This ensures that the drive component 120 can function after the suction channel 210 is opened for suction, improving the operational effectiveness of the drive component 120. This eliminates situations where the drive component 120 is mistakenly opened, such as when the suction channel 210 is not open, thus improving suction safety.

[0037] In one embodiment of this application, please refer to [further details]. Figure 3 The drive unit 120 has a flow channel 122 connected to a through hole 220. The flow channel 122 extends to the outer wall of the handle 400, facilitating grip and operation by medical personnel. Medical personnel can easily grasp and manipulate the flow channel 122, such as by connecting the through hole 220 to the outside through the flow channel 122, thus stopping suction in the suction channel 210. Medical personnel can also close the flow channel 122 to seal the through hole 220, creating negative pressure at the distal end of the suction channel 210. The walls surrounding the flow channel 122 are elastic. Due to this elasticity, the walls deform during pressing, with the surrounding walls moving closer to the central axis of the flow channel 122, further sealing it. This operation is simple and efficient. Furthermore, the elastic walls facilitate pressing by medical personnel, preventing excessive wall strength that could hinder the operation of the drive unit 120.

[0038] In another implementation, please refer to [link / reference needed]. Figure 3 The drive member 120 has a cleaning chamber 123 filled with a second medium, which can be physiological saline, purified water, etc., and is not limited thereto. The cleaning chamber 123 is connected to the distal end of the suction channel 210, and the second medium can flow from the cleaning chamber 123 into the distal end of the suction channel 210, and enter the suction channel 210 from the distal end of the suction channel 210. When the drive member 120 moves relative to the insertion tube 200, the cleaning chamber 123 can be compressed to drive the second medium to flow from the cleaning chamber 123 to the distal end of the insertion tube 200. For example, when a medical staff member presses the drive member 120, the drive member 120 is compressed and drives the shielding member 110. At the same time, the cleaning chamber 123 is also squeezed and the second medium is discharged. The second medium can flow from the cleaning chamber 123 to the distal side of the insertion tube 200. The second medium can dilute the sputum, sputum plugs, etc. in the suction channel 210 or outside the insertion tube 200, and promote the discharge of sputum and sputum plugs.

[0039] Understandably, in another scenario, the hardness of the wall forming the cleaning chamber 123 may be higher than that of the wall forming the receiving chamber 121. Consequently, when a medical professional presses the drive member 120, the wall forming the receiving chamber 121 deforms preferentially, and the first medium within the receiving chamber 121 drives the blocking member 110. Furthermore, after the drive member 120 is compressed and drives the blocking member 110 to a designated position, the wall forming the cleaning chamber 123 begins to deform, allowing the second medium to flow from the cleaning chamber 123 to the distal end of the insertion tube 200. The second medium can dilute sputum, sputum plugs, etc., within the suction channel 210 or outside the insertion tube 200, promoting the discharge of sputum and sputum plugs. Influenced by factors such as the different first and second media, the relative positions and hardness of the cleaning chamber 123 and the receiving chamber 121, the first and second media can flow out simultaneously or intermittently, so that the blocking and cleaning effects can be simultaneously or intermittently applied to the insertion tube 200.

[0040] Please refer to the embodiments in this application. Figure 3 The cleaning chamber 123 is provided with an outlet 125, which can be connected to the distal end of the suction channel 210, and the outlet 125 is provided with a sealing structure 124. The sealing structure 124 can close the outlet 125, prevent the second medium from flowing out of the cleaning chamber 123, prevent the second medium from leaking during idle or transportation, and improve the protection capability of the pulse assembly 100.

[0041] In one implementation, please refer to [link / reference needed]. Figure 3 The sealing structure 124 can be a membrane structure, such as an easy-tear membrane or a flap, and is not limited thereto. When the pressure inside the cleaning chamber 123 is greater than or equal to a pressure threshold, the sealing structure 124 opens, allowing the second medium to flow from the outlet 125 to the distal end of the insertion tube 200. The membrane structure tightly adheres to the outlet 125, preventing the second medium from flowing out of the cleaning chamber 123, thereby ensuring the stability of the internal environment of the cleaning chamber 123 and the overall sealing of the system. This is crucial for preventing external impurities from entering the cleaning chamber 123 and avoiding contamination of the second medium. During surgery, when medical personnel press the drive component 120, the cleaning chamber 123 is compressed and contracts. When the pressure inside the cleaning chamber 123 rises to a level greater than or equal to a preset pressure threshold, the membrane structure automatically opens, allowing the second medium to flow smoothly from the outlet 125 to the distal end of the insertion tube 200. For example, during sputum suction, when the sputum is detected to be highly viscous and more secondary medium is needed for dilution, the sealing structure 124 opens when the pressure reaches the threshold, and the secondary medium flows out at an appropriate flow rate to effectively dilute the sputum, while avoiding the normal operation of the pulse component 100 due to poor sealing.

[0042] In another implementation, please refer to Figure 6 and Figure 7The driving component 120 is provided with a puncture structure 126, such as a puncture needle or puncture pad, which is not restricted. The puncture structure 126 is movable relative to the sealing structure 124, which is located in the movement path of the puncture structure 126. When the puncture structure 126 is movable relative to the sealing structure 124, it can puncture the sealing structure 124, allowing the second medium to flow from the outlet 125 to the distal end of the insertion tube 200. In the initial state, the sealing structure 124 closes the outlet 125, ensuring the sealing of the cleaning chamber 123 and preventing leakage of the second medium. When a medical staff member presses the driving component 120, the driving component 120 moves the puncture structure 126 relative to the sealing structure 124. The puncture structure 126 punctures the sealing structure 124, breaking the sealing structure 124 and opening the outlet 125, allowing the second medium to flow from the outlet 125 to the distal end of the insertion tube 200. The puncture structure 126 can quickly and effectively open the outlet 125, allowing the second medium to flow out rapidly when needed, ensuring the stability and reliability of the system.

[0043] In another embodiment, the drive unit 120 can be provided with either a puncture structure 126 or a sealing structure 124, which can be a membrane structure. The puncture structure 126 can puncture the membrane structure. The puncture structure 126 and the membrane structure are redundantly configured to ensure that the outlet 125 can discharge the second medium in a timely manner, which will not be elaborated here.

[0044] To achieve the above and other related objectives, this application provides an insertion tube assembly 300. Please refer to [link to relevant documentation]. Figure 8 and Figure 9 The insertion tube assembly 300 includes the pulse assembly 100 and the insertion tube 200 as described above. The pulse assembly 100 and the insertion tube 200 are connected, thus enabling the insertion tube assembly 300 to have the beneficial effects of any of the aforementioned solutions, which will not be elaborated further here.

[0045] The insertion tube 200 has a suction channel 210, and a blocking member 110 is disposed in the insertion tube 200. The blocking member 110 can increase or decrease the flow area of ​​the suction channel 210. Further, in one case, the blocking member 110 can be disposed on the inner wall of the insertion tube 200, that is, the blocking member 110 is disposed within the suction channel 210. Changes in the position or orientation of the blocking member 110 can directly change the flow area of ​​the suction channel 210. In another case, the blocking member 110 can be disposed on the outer wall of the insertion tube 200, that is, the blocking member 110 can compress the tube wall of the insertion tube 200 to change the flow area of ​​the suction channel 210. In yet another case, the blocking member 110 can be disposed within the arm of the insertion tube 200, which will not be elaborated here.

[0046] To achieve the above and other related objectives, this application provides a suction endoscope 1. Please refer to [link / reference]. Figure 8 and Figure 9 The suction endoscope 1 includes the insertion tube assembly 300 and the handle 400 as described above. The insertion tube assembly 300 and the handle 400 are connected, thus enabling the suction endoscope 1 to have the beneficial effects of any of the aforementioned solutions, which will not be elaborated here.

[0047] The insertion tube assembly 300 is connected to the handle 400. Further, the insertion tube 200 of the insertion tube assembly 300 is connected to the handle 400, and a portion of the insertion tube 200 is disposed within the handle 400. A blocking member 110 is correspondingly disposed with the handle 400. For example, the blocking member 110 is disposed on the portion of the insertion tube 200 located within the handle 400, i.e., the aforementioned mounting portion of the insertion tube 200. The handle 400 can provide support for the blocking member 110, allowing the blocking member 110 to change the flow area of ​​the suction channel 210 of the insertion tube 200. In addition, the handle 400 also includes an electrical connection portion 410, which can be connected to other devices, such as a display device or power supply. It can supply power or transmit signals to the camera module of the suction endoscope 1, enabling medical personnel to observe the distal end of the insertion tube 100 and improving the operability of the suction endoscope 1.

[0048] The pulse assembly 100, insertion tube 200, and suction endoscope 1 provided in this application are configured such that the pulse assembly 100 is disposed within the insertion tube 200 of the suction endoscope 1. Medical personnel can operate the drive component 120 to activate the blocking component 110, thereby adjusting the flow area of ​​the suction channel 210. Furthermore, it can increase and decrease the flow area of ​​the suction channel 210. With the same flow rate within the suction channel 210, increasing the area of ​​the suction channel 210 via the blocking component 110 increases the flow area and slows the flow velocity, allowing larger volumes of sputum or sputum plugs to pass through, preventing the suction channel 210 from being blocked by sputum plugs. Conversely, decreasing the area of ​​the suction channel 210 via the blocking component 110 reduces the flow area, increases the flow velocity, enhances the suction power of the suction endoscope 1, and improves the efficiency of sputum and sputum plug removal.

[0049] During this period, medical staff can repeatedly control the working state of the drive component 120 and the shielding component 110 to switch rapidly and repeatedly, that is, to continuously control the increase and decrease of the flow area of ​​the suction channel 210, so as to form a rapidly changing pressure fluctuation inside the suction channel 210, thereby generating pressure impact, which helps to loosen and clear sputum plugs and improve suction efficiency.

[0050] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0051] Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0052] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A suction endoscope, characterized in that, The suction endoscope includes an insertion tube assembly, which includes an insertion tube and a pulse assembly. The insertion tube has a suction channel, and the pulse assembly includes: A blocking member, disposed on the insertion tube and configured to block the suction channel to adjust the flow area of ​​the suction channel; and A driving component, the driving component being used to drive the blocking component to change the flow area of ​​the suction channel; The drive unit has a cleaning chamber filled with a second medium. The cleaning chamber is connected to the distal end of the suction channel. When the drive unit moves relative to the insertion tube, the cleaning chamber can be squeezed to drive the second medium to flow from the cleaning chamber to the distal end of the insertion tube. The cleaning chamber has an outlet that can be connected to the distal end of the suction channel. The outlet has a sealing structure, which is a membrane structure. When the pressure in the cleaning chamber is greater than or equal to a pressure threshold, the sealing structure opens to allow the second medium to flow out from the outlet to the distal end of the insertion tube.

2. The suction endoscope according to claim 1, characterized in that, The shielding member has a pulse cavity, and the driving member has a receiving cavity filled with a first medium. The pulse cavity and the receiving cavity are connected. When the driving member moves relative to the insertion tube, the first medium can flow from the receiving cavity into the pulse cavity.

3. The suction endoscope according to claim 2, characterized in that, The shielding member is disposed within the suction channel, and under the driving action of the driving member, the shielding member can shield or open at least a portion of the suction channel. And / or, the shielding member is disposed outside the insertion tube, and under the driving action of the driving member, the shielding member can squeeze or release the tube wall of the insertion tube.

4. The suction endoscope according to claim 2, characterized in that, The insertion tube has a through hole communicating with the suction channel, and the through hole is located inside the driving component; wherein, The drive component has a flow channel connected to the through hole, and the wall surrounding the flow channel is elastic.

5. The suction endoscope according to claim 1, characterized in that, The drive component is provided with a puncture structure that is movable relative to the sealing structure. The sealing structure is located on the movable path of the puncture structure. When the puncture structure is movable relative to the sealing structure, the puncture structure can puncture the sealing structure so that the second medium can flow from the outlet to the distal end of the insertion tube.

6. The suction endoscope according to any one of claims 1-5, characterized in that, The suction endoscope includes a handle, which is connected to the insertion tube assembly.

7. The suction endoscope according to claim 6, characterized in that, The shielding member is disposed on the mounting portion of the insertion tube, and the mounting portion is located inside the handle.

8. The suction endoscope according to claim 7, characterized in that, The shielding member is disposed on the outer side of the insertion tube, and the outer side of the shielding member is adapted to abut against the inner wall of the handle; And / or, the shielding element is distributed circumferentially along the insertion tube.

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